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A well-insulated rigid tank contains 20 kg of saturated liquid-vapor mixture of water at a 100 kPa. Initially, 73.72% of the mass is in the liquid phase. An electric heater inside is turned on and kept on until all the liquid vaporized. Determine:
a) The entropy change of the water during this processb) The work done by the electric heater during this process H2O 2 kg
a beam of light is emitted in a pool of water from a depth of 69.7 cm. where must it strike the air water interface
1. what would be the percent change in deflection if a solid rectangular beam has its unsupported length changed from
determine the density specific heat and thermal conductivity of a lightweight aggregate concrete mix that is composed
consider airflow past a sphere of diameter 5 cm. the incoming air velocity is 100 ms. the air density and temperature
one kilogram of water fills a 150-l rigid container at an initial pressure of 2 mpa. the container is then cooled to 40
one would like to find preheat 2 tons h of a solution with a specific heat capacity of 3.35 kj kg k from 15 c to 70
refrigerant 134a at 10 bars 38oc flows at 10.0 kgs through a heat exchanger leaving at 9.0 bars and 80oc. it exchanges
1. steam is supplied dry saturated at 40 bar to a turbine and the condenser pressure is 0.035 bar. if the plant
gold and silicon are mutually insoluble in the solid state and form a eutectic system with at eutectic temperature of
a 250ft square shell and tube heat exchanger was purchased for 13500 in 1994 when the index value was 830. estimate the
How the lubricants reduce the friction and wear characteristics of the parts in contact?
water at atmospheric pressure boils on the surface of a large horizontal copper tube. the heat ?ux is 90 of the
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